html, body {
  height: 100%;
  padding: 0;
  margin: 0;
}

#jt_app {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.jt-view {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #fff;
}